Either a ground or sea vessel based launch of missiles viewed from a substantial distance.

In the Northwestern sky, I saw what I thought was an aircraft coming over the horizon. Based upon the location, I assumed it was military as the coloration was different and appeared in the same vicinity from my vantage point as Moffett Field in Mountain View, California.

Upon assent, it was apparent that the object was a missile of sorts as it had a distinct amber trail. As it climbed in elevation, the relative perceived speed provided a clue the object was much further away that originally thought.

It appear to reach the upper atmosphere and the object's propulsion begin to lighten in intensity and then disappear. I then asked two family members to witness the remaining two launches. I believe this was probably launched from a vessel at sea given the distance.

It appears the path was due South from a launch point somewhere near the Farallon Islands.

I don't believe this was extra terrestrial, just some sort of military testing however I can't believe I would have been the only one seeing this as there was plenty of commercial and private aircraft traffic airborne at the time.